A chronic kidney disease caused by severe dehydration has killed 20,000 workers in Central America since 2002. 

(Courtesy Ramon Garcia Trabanino)

Colorado researchers believe a chronic kidney disease that's killed thousands of agricultural workers in Central America could be linked to climate change. The disease was first described in 2002 by Salvadoran doctors. 

Dr. Richard Johnson of the University of Colorado Anschutz Medical Campus, who has worked with researchers in Central America, recently published an article in Scientific American that says climate change can cause dehydration, which may lead to the disease. He spoke with Colorado Matters host Andrea Dukakis.